noun ·Moderate ·College level

Definitions

Noun

1. 1
   A group of three people or things.
2. 2
   three people considered as a unit wordnet
3. 3
   An instance of sexual activity involving three people.

   "Threesomes are huge right now. They're the blow job of the '90s."

4. 4
   the cardinal number that is the sum of one and one and one wordnet

Synonyms

All synonyms

ternaryternionthreetriadtriadtrine

Example

More examples

"Tom tried to convince Mary to have a threesome."

Etymology

From three + -some.

Related phrases

devil's threesome

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.